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st: RE: error with -egen median if-


From   "Alex Ogan" <aogan@ArrowstreetCapital.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: error with -egen median if-
Date   Mon, 22 May 2006 12:04:11 -0400

Here is a more simple example.  I also should have mentioned I am using
Stata/SE 8.2.

. input numvar str1 strvar

        numvar     strvar
  1. 5
  2. 6 "a"
  3. 7 "b"
  4. end

. egen testsum_1 = sum(numvar)

. egen testmedian_1 = sum(numvar)

. egen testsum_2 = sum(numvar) if strvar=="a"
(2 missing values generated)

. egen testmedian_2 = median(numvar) if strvar=="a"
a not found
r(111);

.

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Alex Ogan
Sent: Monday, May 22, 2006 11:59 AM
To: statalist@hsphsun2.harvard.edu
Subject: st: error with -egen median if-

Can anyone explain this weird error (the type mismatch failure on the
final -egen-)? 


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